CN107702881B - Wind tunnel wind-resistant experiment positioning platform and control system thereof - Google Patents
Wind tunnel wind-resistant experiment positioning platform and control system thereof Download PDFInfo
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- CN107702881B CN107702881B CN201711094113.2A CN201711094113A CN107702881B CN 107702881 B CN107702881 B CN 107702881B CN 201711094113 A CN201711094113 A CN 201711094113A CN 107702881 B CN107702881 B CN 107702881B
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- 238000002474 experimental method Methods 0.000 title claims abstract description 32
- 238000009434 installation Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 9
- 230000035939 shock Effects 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
- G01P5/16—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes, e.g. Machmeter
- G01P5/165—Arrangements or constructions of Pitot tubes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a wind tunnel wind-resistant experiment positioning platform for installing a pitot tube and a control system thereof. The control system comprises a wireless panel controller and a PLC, wherein the PLC drives an X-axis motor driver, a Y-axis motor driver, a Z-axis motor driver and a ground foot motor driver in a pulse mode, and the X-axis motor encoder, the Y-axis motor encoder and the Z-axis motor encoder can feed back real-time positions to the PLC and display coordinate positions on the wireless panel controller through control software. The wind tunnel wind resistance experiment positioning platform has long stroke, good shock resistance and high control precision.
Description
Technical Field
The invention belongs to the field of wind resistance experiment equipment, and particularly relates to a wind tunnel wind resistance experiment positioning platform and a control system thereof.
Background
In wind tunnel wind resistance experiments, it is often necessary to measure the fluid velocity with a pitot tube. During measurement, the pitot tube needs to be fixed at a certain position in the wind tunnel. If the pitot tube is welded at a certain fixed position in the wind tunnel, the pitot tube cannot move, and the height or the front and back positions of the pitot tube cannot be adjusted.
The existing positioning platform for wind tunnel wind resistance experiments is mainly limited to short-stroke positioning, such as a dispenser, a chip mounter and the like.
In order to improve the pitot tube test accuracy, it is necessary to provide a long travel positioning platform that can both fix the pitot tube and change the height or front-to-back position of the pitot tube.
Disclosure of Invention
The invention aims to solve the technical problem of providing a long-stroke positioning platform which can fix a pitot tube and change the height or front and back positions of the pitot tube, and has the characteristics of long stroke, high precision, good shock resistance and the like.
In order to solve the technical problems, the technical scheme is that the wind tunnel wind-resistant experiment positioning platform is used for installing a pitot tube and comprises an X-axis direction structure, a Y-axis direction structure and a Z-axis direction structure, wherein the Y-axis direction structure is connected with the X-axis direction structure and can move in the X-axis direction, the Z-axis direction structure is connected with the Y-axis direction structure and can move in the Y-axis direction, and the pitot tube is installed on the Z-axis direction structure and can move in the Z-axis direction.
In addition, the invention also provides the following auxiliary technical scheme.
Preferably, the wind tunnel wind resistance experiment positioning platform further comprises a ground foot structure, and the ground foot structure is connected with the Z-axis direction structure.
Preferably, the X-axis direction structure comprises two X-axis modules arranged in parallel with each other, and the two X-axis modules are respectively fixed on the wind tunnel through fixing blocks; the Y-axis direction structure comprises a Y-axis module and a mounting section bar which is arranged in parallel with the Y-axis module; the Z-axis direction structure comprises a Z-axis module; the two ends of the Y-axis module and the two ends of the mounting section bar are respectively and movably connected with the two X-axis modules, the Z-axis module is movably connected with the Y-axis module, and the foundation structure is connected with the Z-axis module.
Preferably, a clamping groove is formed in the outer side of one of the two X-axis modules, and an X-axis positive direction origin photoelectric switch, an X-axis negative direction photoelectric switch and a drag chain sheet metal part are installed in the clamping groove.
Preferably, the inner sides of the two X-axis modules are respectively provided with a clamping groove, the clamping grooves are respectively provided with a guide rail, the guide rails are respectively provided with a sliding block capable of sliding relative to the guide rails, and the sliding blocks are respectively fixedly connected with a sliding seat.
Preferably, two ends of the mounting section bar are respectively connected with two ends of the Y-axis module through adapter plates, and the two adapter plates are respectively connected with the two sliding seats.
Preferably, a clamping groove is formed in the side edge of the Y-axis module, and a Y-axis positive direction origin photoelectric switch, a Y-axis negative direction photoelectric switch and a drag chain sheet metal part are installed in the clamping groove; the Z-axis module is fixedly connected to the sliding seat.
Preferably, the anchor structure comprises a connecting plate fixedly connected with the Z-axis module, a motor and a guide rail, wherein the motor and the guide rail are installed on the connecting plate, a sliding block is arranged on the guide rail, the sliding block is installed on the sliding block in a switching mode, and a screw rod of the motor is connected on the sliding block in a switching mode.
Preferably, the sliding block is connected with the oil-free sleeve in a switching way, the guide rod is installed in the oil-free sleeve, the guide rod is sleeved with a spring, the other end of the guide rod is installed on the pressing plate, one surface of the bottom plate is connected onto the pressing plate through the spring, and the other surface of the bottom plate is fixedly connected with the rubber block.
In order to solve the technical problem, the invention adopts another technical scheme that the control system is used for controlling the wind tunnel wind-resistant experiment positioning platform and comprises a wireless panel controller, a PLC, an X-axis motor driver, a Y-axis motor driver, a Z-axis motor driver and a ground foot motor driver, wherein the PLC drives the X-axis motor driver, the Y-axis motor driver, the Z-axis motor driver and the ground foot motor driver in a pulse mode, and the X-axis motor encoder, the Y-axis motor encoder and the Z-axis motor encoder can feed back real-time positions to the PLC, and display coordinate positions on the wireless panel controller through control software.
Compared with the prior art, the invention has the advantages that:
the invention relies on the side edge of the X-axis module to install the guide rail, and installs the guide rail on the installation section bar parallel to the Y-axis module, thereby breaking through the limitation of the existing simple utilization of the linear module movement, and solving the problem of inaccurate positioning precision caused by creep and vibration of the module during long travel.
According to the invention, the lower part of the Z-axis module is provided with the tightly-propped foot margin structure, and the motor drives the bottom plate connected with the spring to press down on the floor, so that the Z-axis module is tightly propped, and the vibration problem in wind tunnel wind resistance experiments is solved.
The whole control scheme of the invention adopts a wireless panel controller, and the wireless panel is operated through a glass observation window outside the wind tunnel by utilizing WIFI connection to control the positioning platform to carry out experiments, so that the control precision is higher.
Drawings
FIG. 1 is a schematic perspective view of a wind tunnel wind resistance experiment positioning platform of the invention.
FIG. 2 is a schematic diagram of the structure of the wind tunnel wind-resistant experiment positioning platform in the X-axis direction.
FIG. 3 is a schematic view of the Y-axis direction structure of the wind tunnel wind-resistance experiment positioning platform.
FIG. 4 is a schematic view of the Z-axis direction structure of the wind tunnel wind resistance experiment positioning platform of the invention.
FIG. 5 is a schematic diagram of the foundation structure of the wind tunnel wind-resistance experiment positioning platform.
Fig. 6 is a schematic diagram of a control system of the present invention.
Wherein,
x-axis motor 2. X-axis motor reducer
3.X shaft motor support 4.X shaft positive direction origin photoelectric switch
5. Fixed block 5'. Fixed block
6. Drag chain sheet metal part 7. Slide seat
7'. Sliding seat 8.X shaft negative direction photoelectric switch
9. Guide rail 9'. Guide rail
10. Coupling 11. Drive shaft
Y-axis motor 13. Y-axis motor reducer
Y-axis positive direction photoelectric switch 15. Wire pulling block
16. Connecting block 17. Sheet metal part of drag chain
18. Coupler 19.Y axis negative direction photoelectric switch
20. Mounting section bar 21. Slide
23. Adapter plate 23'. Adapter plate
24. Screw 25. Motor
26. Motor cabinet 27. Sliding block switching
28. Spring 29. Guide bar
30. Pressing plate 31. Rubber block
32. Bottom plate 33 spring
34. Stopper 35. Foot forward direction photoelectric switch
36. Guide rail 37. Sensing piece
38. Foot origin photoelectric switch 39. Foot negative direction photoelectric switch
40. Connecting plate 41. Wireless Flat controller
PLC 43.X axis motor driver
Y-axis motor driver 45. Z-axis motor driver
46. Foot margin motor driver 50.Z axle motor
51. Reinforcing rib 52. Slide seat
L-shaped block 100. X-axis module
100'. X-axis module 200. Y-axis module
Z-axis module
Detailed Description
The technical scheme of the present invention is further described in non-limiting detail below with reference to the preferred embodiments and the accompanying drawings.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate device. The meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 to 5, the invention discloses a wind tunnel wind-resistant experiment positioning platform for installing a pitot tube. The wind tunnel wind resistance experiment positioning platform comprises an X-axis direction structure, a Y-axis direction structure, a Z-axis direction structure and a foundation structure. The Y-axis direction structure is connected with the X-axis direction structure and can move in the X-axis direction, the Z-axis direction structure is connected with the Y-axis direction structure and can move in the Y-axis direction, and the pitot tube is installed on the Z-axis direction structure and can move in the Z-axis direction.
As shown in fig. 1 and 2, the X-axis direction structure includes two X-axis modules 100,100' disposed in parallel with each other, a transmission shaft 11, and an X-axis motor 1. The left and right X-axis modules 100,100 'are bolted to the ceiling of the wind tunnel by fixing blocks 5,5', respectively. The bolts are installed and adjusted to ensure that the left and right X-axis modules 100,100' remain parallel. Preferably, the fixing blocks 5 and 5 'are L-shaped, and of course, the fixing blocks 5 and 5' may be other shapes for realizing the connection and fixing effect.
The two X-axis modules 100,100' are connected by a drive shaft 11. The left end of the transmission shaft 11 is connected to the X-axis motor reducer 2 through a coupler 10, and the X-axis motor bracket 3 fixes the X-axis motor reducer 2 and the X-axis motor 1 on the left X-axis module 100. The right end of the drive shaft 11 is connected to the right X-axis module 100' by a coupling 18.
The outside of one of the two X-axis modules 100,100' is provided with a clamping groove. In the present invention, a groove is selectively provided on the outer side of the left X-axis module 100. Of course, a clamping groove can be arranged on the outer side of the right X-axis module 100', which does not deviate from the concept of the invention. An X-axis positive direction origin photoelectric switch 4, an X-axis negative direction photoelectric switch 8 and a drag chain sheet metal part 6 are arranged in the clamping groove. Preferably, the X-axis positive direction origin photoelectric switch 4, the X-axis negative direction photoelectric switch 8 and the drag chain sheet metal part 6 are all fixed in the clamping groove on the side edge of the left X-axis module 100 through bolts.
Clamping grooves are respectively formed in the inner sides of the left X-axis module 100 and the right X-axis module 100', a guide rail 9 and a guide rail 9' are respectively arranged in the clamping grooves, and sliding blocks capable of sliding relative to the guide rail 9 and the guide rail 9 'are respectively arranged on the guide rail 9 and the guide rail 9'. The slide blocks are respectively fixedly connected with a slide seat 7 and a slide seat 7'. The sliders 7 and 7' can slide back and forth along the rails 9 and 9' provided on the left and right X-axis modules 100 and 100' in the X-axis direction along the sliders.
Preferably, the guide rail 9 and the guide rail 9' are both linear guide rails. The wind tunnel wind-resistance experiment positioning platform adopts the guide rail 9 and the guide rail 9' which are arranged on the side surfaces, so that the stability of the positioning platform in tangential stress can be ensured.
Referring to fig. 3, the Y-axis direction structure includes a Y-axis module 200, a mounting profile 20 disposed parallel to the Y-axis module 200, and a Y-axis motor 12, a Y-axis motor reducer 13. The Y-axis module 200 is secured to the equal length profile 18 via square connecting blocks 16 for inhibiting vertical deformation during movement of the Y-axis module 200.
The left end of the installation section bar 20 is connected with the left end of the Y-axis module 200 through the adapter plate 23 and locked by bolts, and the right end of the installation section bar 20 is connected with the right end of the Y-axis module 200 through the adapter plate 23' and locked by bolts. The left end of the Y-axis module 200 and the left end of the installation profile 20 are connected with the sliding seat 7 through the adapter plate 23 and locked by bolts, and the right end of the Y-axis module 200 and the right end of the installation profile 20 are connected with the sliding seat 7 through the adapter plate 23' and locked by bolts.
Since the slide 7 and the slide 7 'can slide back and forth along the guide rail 9 and the guide rail 9' provided on the left and right X-axis modules 100 and 100 'in the X-axis direction along the slide, the Y-axis module 200 and the mounting profile 20 can slide back and forth in the X-axis direction with respect to the X-axis modules 100 and 100'.
The side of the Y-axis module 200 is provided with a clamping groove, and the Y-axis positive direction origin photoelectric switch 14, the Y-axis negative direction photoelectric switch 19 and the drag chain sheet metal part 17 are fixed in the clamping groove on the side of the Y-axis module 200 through bolts.
The mounting section bar 20 is provided with a guide rail, and the sliding seat 21 is movably connected on the guide rail of the Y-axis module 200 and the mounting section bar 20, that is, the sliding seat 21 can slide left and right along the guide rail of the Y-axis module 200 and the mounting section bar 20 according to the Y-axis direction. One end of the slide 21 is connected with a wire-pulling block 15.
Referring to fig. 4, the Z-axis structure includes a Z-axis module 300, and a motor 50 connected to the Z-axis module 300. L-shaped blocks 53 connect stiffener 51 and Z-axis module 300 together.
The carriage 52 is movably connected to the Z-axis module 300, and the pitot tube is mounted on the carriage 52, that is, the pitot tube can slide up and down along the Z-axis module 300 in the Z-axis direction. During assembly, the Z-axis module 300 is fixedly connected to the slide 21, and the reinforcing ribs 51 are installed to inhibit creep during movement of the Z-axis module 300.
Since the slide carriage 21 can slide left and right along the Y-axis direction along the guide rails of the Y-axis module 200 and the mounting profile 20, the Z-axis module 300 can slide left and right along the Y-axis direction along the guide rails of the Y-axis module 200 and the mounting profile 20 along the slide carriage 21.
Referring to fig. 5, the anchor structure includes a connection plate 40 fixedly connected to the Z-axis module 300, and a motor 25 and a guide rail 36 mounted on the connection plate 40. Preferably, the motor 25 is a linear stepper motor.
In assembly, connecting plate 40 is bolted to the end of Z-axis module 300, motor mount 26 is mounted to connecting plate 40, and motor 25 is mounted to motor mount 26. After the assembly is completed, the guide rail 36 is mounted on the connection plate 40, and preferably, the guide rail 36 is a linear guide rail. To ensure accurate positioning of the Z-axis module 300, the guide rail 36 needs to be securely mounted in a vertical direction. The guide rail 36 is provided with a slider slidable relative thereto.
The limiting block 34 is arranged at the tail end of the guide rail 36 and is locked on the connecting plate 40 through bolts, and the foot positive direction photoelectric switch 35, the foot negative direction photoelectric switch 39 and the foot origin photoelectric switch 38 are arranged on the connecting plate 40 and are guaranteed to be arranged on the same straight line. The installation positions of the foot positive direction photoelectric switch 35 and the foot negative direction photoelectric switch 39 are the limit positions of the foot structural movement.
After the above assembly is completed, the slider switch 27 is mounted on the slider of the guide rail 36, and the end screw of the screw 24 passing through the motor 25 is mounted on the slider switch 27. The slider adaptor 27 is provided with a sensor tab 37.
After that, the spring 28 is fitted over the guide rod 29, and the guide rod 29 is mounted in the oil-free sleeve of the slider switch 27. The guide rod 29 is fixed with a gasket by bolts to block the oilless sleeve, and the guide rod 29 can slide up and down in the oilless sleeve. The spring 28 may be any other resilient element that performs its function. Preferably, the guide bar 29 is disposed parallel to the guide rail 36 after installation.
After the above-described assembly is completed, the other end of the guide lever 29 is mounted in the pressing plate 30, one end of the spring 33 is mounted on the pressing plate 30 by a bolt, and the other end of the spring 33 is mounted on the bottom plate 32 and is locked by a bolt. The rubber block 31 is then glued to the bottom plate 32. Preferably, the number of springs 33 of the present invention is 4. Other numbers of springs 33 are possible without departing from the spirit of the invention. The spring 33 may be any other elastic element that can perform its function.
The working principle of the lower ground foot structure is as follows.
When a forward movement button of the motor 25 in the wireless flat panel controller 41 is pressed, the screw rod 24 pushes the sliding block transfer 27 to move downwards along the guide rail 36 when the motor 25 rotates in the forward direction, the guide rod 29 slides in the oil-free sleeve of the sliding block transfer 27, the rubber block 31 is tightly pressed against the floor, the spring 28 is compressed, the spring 33 is compressed through the pressing plate 30, and when the rubber block 31 is tightly pressed against the floor, the button is released, so that the tightness state between the ground and the foundation structure can be adjusted according to the pulse quantity sent by the controller. The foot forward direction photoelectric switch 35 is forward direction protection, and the sensing piece 37 reaches a limited forward direction limit position after contacting the foot forward direction photoelectric switch 35.
When repositioning or resetting, the negative direction movement button of the motor 25 in the wireless flat panel controller 41 is pressed, the motor 25 is controlled to rotate in the negative direction, the screw rod 24 drives the sliding block transfer 27 to move upwards along the guide rail 36, the guide rod 29 slides in the oil-free sleeve of the sliding block transfer 27, the spring 28 and the spring 33 are reset, and the button is released after the rubber block 31 and the floor are separated from a propped state. After the sensor strip 37 contacts the foot negative direction photoelectric switch 39, the sensor strip reaches a limited negative direction limit position.
Upon reset, the foot structure returns to the original position due to the foot origin photoelectric switch 38.
Referring to fig. 6, the control system of the present invention is used for controlling a wind tunnel wind-resistant experiment positioning platform, and comprises a wireless flat panel controller 41, a PLC 42, an X-axis motor driver 43, a Y-axis motor driver 44, a Z-axis motor driver 45, a ground leg motor driver 46, etc.
The wireless flat panel controller 41 is an upper computer of the invention, the PLC 42 is a lower computer of the invention, data and instructions are transmitted between the upper computer and the lower computer through a Modbus protocol, and wireless WIFI connection is adopted. The X-axis motor driver 43 and the X-axis motor 1 form a full-closed loop control system, the Y-axis motor driver 44 and the Y-axis motor 12 form a full-closed loop control system, the Z-axis motor driver 45 and the Z-axis motor 50 form a full-closed loop control system, and the anchor motor driver 46 and the motor 25 form a full-closed loop control system.
The working principle of the invention is shown as follows.
The PLC 42 drives the X-axis motor driver 43, the Y-axis motor driver 44, the Z-axis motor driver 45, and the foot motor driver 46 in a pulse manner to drive the X-axis motor 1, the Y-axis motor 12, the Z-axis motor 50, and the foot motor 25 to rotate, respectively.
The rotation of the X-axis motor 1 drives the Y-axis module 200 to slide back and forth along the guide rails 9,9' provided on the X-axis modules 100,100' through the sliders 7,7', respectively, according to the X-axis direction. Rotation of the Y-axis motor 12 drives the Z-axis die set 300 to slide left and right in the Y-axis direction along the Y-axis die set 200 and the guide rail of the mounting profile 20 by the slide 21. The rotation of the Z-axis motor 50 moves the slider 52 provided on the Z-axis module 300 up and down along the Z-axis direction (vertical direction), thereby driving the pitot tube mounted on the slider 52 to move up and down. Rotation of the motor 25 may cause the ground structure to be in or out of a tight-against condition with the floor.
The number of pulses determines the number of turns of each motor and the frequency of pulses determines the rotational speed of each motor. The X-axis motor encoder, the Y-axis motor encoder, and the Z-axis motor encoder can feed back the real-time position to the PLC 42, and the coordinate position is displayed on the wireless flat panel controller 41 by the control software.
The invention relies on the side edges of the X-axis modules 100 and 100 'to install the guide rail 9 and the guide rail 9', and installs the guide rail on the installation section bar 20 parallel to the Y-axis module 200, thereby breaking through the limitation of the existing simple linear module movement and solving the problem of inaccurate positioning precision caused by creep and vibration of the modules in long travel.
According to the invention, the lower part of the Z-axis module 300 is provided with the tightly-propped foot margin structure, and the motor 25 drives the bottom plate 32 connected with the spring 33 to press down on the floor, so that the Z-axis module 300 is tightly propped, and the vibration problem in wind tunnel wind resistance experiments is solved.
The whole control scheme of the invention adopts the wireless panel controller 41, and the wireless panel is operated through the glass observation window outside the wind tunnel by utilizing WIFI connection to control the wind tunnel wind resistance experiment positioning platform to carry out experiments, so that the control precision is higher.
It should be noted that the foregoing description of the preferred embodiments is merely illustrative of the technical concept and features of the present invention, and is not intended to limit the scope of the invention, as long as the scope of the invention is defined by the claims and their equivalents. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (5)
1. The utility model provides a wind-tunnel wind-resistant experiment location platform for install pitot tube, its characterized in that: the wind tunnel wind-resistant experiment positioning platform comprises an X-axis direction structure, a Y-axis direction structure and a Z-axis direction structure, wherein the Y-axis direction structure is connected with the X-axis direction structure and can move in the X-axis direction, the Z-axis direction structure is connected with the Y-axis direction structure and can move in the Y-axis direction, the pitot tube is installed on the Z-axis direction structure and can move in the Z-axis direction, the wind tunnel wind-resistant experiment positioning platform further comprises a foot structure connected with the Z-axis direction structure, the foot structure comprises a connecting plate (40) connected with the Z-axis direction structure, a motor (25) and a guide rail (36) which are installed on the connecting plate (40), a sliding block is arranged on the guide rail (36), a lead screw (24) of the motor (25) is connected on the sliding block (27), an oil-free sleeve is arranged on the sliding block joint, a guide rod (29) is installed in the oil-free sleeve, a first spring (28) is sleeved on the guide rod (29), the other end of the guide rod (29) abuts against a first pressing plate (30) on a second pressing plate (30) through a first pressing plate (30), the lower end of the second spring (33) is abutted against the bottom plate (32), the X-axis direction structure comprises two X-axis modules (100, 100 ') which are arranged in parallel, and the two X-axis modules (100, 100 ') are respectively fixed on the wind tunnel through fixing blocks (5, 5 '); the Y-axis direction structure comprises a Y-axis module (200) and a mounting section bar (20) which is arranged in parallel with the Y-axis module; the Z-axis directional structure comprises a Z-axis module (300); the two ends of the Y-axis module (200) and the two ends of the installation section bar (20) are respectively and movably connected with the two X-axis modules (100, 100'), the Z-axis module (300) is movably connected with the Y-axis module (200), and the anchor structure is connected with the Z-axis module (300).
2. The wind tunnel wind resistance experiment positioning platform according to claim 1, wherein: the outside of one of the two X-axis modules (100, 100') is provided with a clamping groove, and an X-axis positive direction origin photoelectric switch (4), an X-axis negative direction photoelectric switch (8) and a drag chain sheet metal part (6) are arranged in the clamping groove.
3. The wind tunnel wind resistance experiment positioning platform according to claim 1, wherein: clamping grooves are formed in the inner sides of the two X-axis modules (100, 100 '), guide rails (9, 9 ') are respectively arranged in the clamping grooves, sliding blocks capable of sliding relative to the guide rails (9, 9 ') are respectively arranged on the guide rails (9, 9 '), and sliding seats (7, 7 ') are respectively and fixedly connected to the sliding blocks.
4. A wind tunnel wind resistance experiment positioning platform according to claim 3, wherein: two ends of the mounting profile (20) are respectively connected with two ends of the Y-axis module (200) through adapter plates (23, 23 '), and the two adapter plates (23, 23 ') are respectively connected with the two sliding seats (7, 7 ').
5. The wind tunnel wind resistance experiment positioning platform according to claim 1, wherein: a clamping groove is formed in the side edge of the Y-axis module (200), and a Y-axis positive direction original point photoelectric switch (14), a Y-axis negative direction photoelectric switch (19) and a drag chain sheet metal part (17) are arranged in the clamping groove; the installation section bar (20) is provided with a guide rail, the sliding seat (21) is movably connected to the Y-axis module (200) and the guide rail of the installation section bar (20), and the Z-axis module (300) is fixedly connected to the sliding seat (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711094113.2A CN107702881B (en) | 2017-11-08 | 2017-11-08 | Wind tunnel wind-resistant experiment positioning platform and control system thereof |
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| CN201711094113.2A CN107702881B (en) | 2017-11-08 | 2017-11-08 | Wind tunnel wind-resistant experiment positioning platform and control system thereof |
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| CN107702881A CN107702881A (en) | 2018-02-16 |
| CN107702881B true CN107702881B (en) | 2024-01-05 |
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| CN109655225B (en) * | 2019-01-29 | 2024-03-29 | 吉林大学 | Adjustable wind tunnel test bed and test method for fluid-solid coupling test of automobile model |
| CN111766037A (en) * | 2020-07-07 | 2020-10-13 | 浙江大学 | Mounting platform of standard pitot tube for small wind tunnel experiment flow field calibration and use method thereof |
| CN115435999B (en) * | 2022-10-26 | 2023-03-24 | 中国航空工业集团公司北京长城计量测试技术研究所 | A remove test jig for test room flow field parameter test is used |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07103848A (en) * | 1993-09-30 | 1995-04-21 | Mitsubishi Heavy Ind Ltd | Wind tunnel test equipment |
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| CN206567854U (en) * | 2017-03-05 | 2017-10-20 | 杨自强 | A kind of vibration proof, high-precision drill jig |
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| JPH07103848A (en) * | 1993-09-30 | 1995-04-21 | Mitsubishi Heavy Ind Ltd | Wind tunnel test equipment |
| CN2846006Y (en) * | 2005-06-08 | 2006-12-13 | 上海第二锻压机床厂 | Workpiece moving device for open multiple die press |
| CN102121175A (en) * | 2010-01-08 | 2011-07-13 | 厦门至工机电有限公司 | Programming control system of pattern sewing machine based on PLC (Programmable Logic Controller) |
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| CN206567854U (en) * | 2017-03-05 | 2017-10-20 | 杨自强 | A kind of vibration proof, high-precision drill jig |
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